Does your learner occasionally skip a line, or re-read the same line twice? The problem is immature oblique and lateral muscles that make the return sweep to the next line a problem. This can still be a difficulty as late as 4th grade, but I’d recommend different solutions for different grades.
EZC Reader Strips help the 2nd-3rd grade learner maintain gaze on the line being read, and allow them to drop down with their eyes as they move the window down to the next line. You can use these for multiplication charts, too; use two different colors–yellow for the column and red for the row. Where the two strips intersect it turns orange, and that’s the answer! I have also used them to help kids answers in word searches.
4th or 5th Graders have to learn about ruler marks in fractional amounts, so this product, the EZC Ruler, serves a dual function.
1st graders, and occasionally younger readers, need a wider guide, and this EZC Reader serves the purpose.
If return sweep persists as a problem (still chronic in mid-3rd to mid-4th grade), insist on an eye doctor’s exam be done where the part of the eye exam is without drops. The eye drops immobilize the eye muscles (which is the actual problem), so the tests for “phorias and tropias” have to be done before the drops are put in. I’ve had dozens of parents tell me that they took their child to the eye doctor and they were told their eyes were fine. When I asked the doctor if phorias and tropias were checked, they weren’t.